Radiator



RADIATOR. v APPLICATION FILED APB-28, 1917- RENEWED NOV- 21,1918- 1,379,015.

R. L. HAWKINS.

Patented May 24,1921.

UNITED. STATES PATENT OFFICE.

RAYMOND L. HAWKINS, OF DETROIT, MICHIGAN, ASSIG-NOR TO LONG UFACTUR- ING COMPANY, OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

RADIATOR.

Specification-of Letters Patent. vPatented May 24, 1921.

Application filed Apri1 28, 1917, Serial No. 165,071. Renewed November 21, 1918. Serial No. 263,635.

T 0 all whom it may concern:

Be it known that I, RAYMOND L. HAW- KINS, a citizen of the United States, residing at Detroit, county of Wayne, and State of Michigan, have invented certain new and useful Improvements in Radiators, of which the following is a full, clear, and exact description.

This invention relates to certain new and useful improvements in radiator construction and has for its object the provision of a radiator which is simple in construction, efficient in the dissipation of heat, easily manufactured and less susceptible to devel oping leaks when in use.

In one embodiment of my improved construction, vertical flat water tubes are used.

These tubes are semi-hexagonally corrugated at each edge and when assembled in place to form'the core their tubes are separated by separating members which are-like wise semi-hexagonally corrugated at their ends and intermediate the ends these members are shaped to form battles which direct the air passing through the core a ainst the vertical walls of the water tubes. t will be understood that the assembly of semi-heir agonally corrugated tubes and spacing members in the complete core give the core an appearance at the front and back of being a hexagonal cellular radiator, whereas in fact the front andback portions alone are of hexagonal contour. The intermediate portions between the front and back are straight vertical tubes, whereby the cost-of manufacture is materially reduced. The resulting core has greater strength than a regular fiat tube radiator and is less liable to develop leaks when in use, as there is no water in the tubes immediately adjacent the front and rear thereof. These portions of the tubes are criinped together, as will be ex lained in further detail hereinafter.

ther objects of the present invention will be pointed out in more detail 'in the accompanying specification and more "particularly-defined in the appended clalms.

In the drawings Figure 1 shows in central section a'radiator embodying my invention.

Fig. 2 is a 4.-4 of Fig. 1...

front view of a portion of the Y 'ing'appearance of a hexagon cellular radia- Fig. 5 is a detail view of one of the vertical water tubes.

Fig. 6 is a detail view of one in'g members.

In more detail, the radiator comprises a lower tank 10, upper tank 11, filler tube 12,

and shell 13.

usual overlapping seam 18.- When the fiat tube vhas been completed the edges thereof are crushed together and deformed into semi-hexagonal contour as clearly shown at 19 inFig. 5. The semi-hexagonal portions are also provided with a series of'cupped depressions and projections 20.

' he spacer member is shown in Fig. 6 and has the edges shaped, to semi-hexagonal form, as shown at 21. .On these hexagonal portions I likewise provide depressions and projections 22. Intermediate the semi-hex agonal edgesof thefspac'er'strip the metal is sheared out and the remaining .brid ing strips 23 are turned to substantially a right angle with the plane of the strip.

he spacing members and water tube'elements are then assembled together side by side in such a manner that the semi-hexagonal edge of a spacing member. is disposed complementary to the semi-hexagonal edge of the tube; element. The cup 'sions, and projections 21 rest wit the corre-- er depressponding'buttons and de ressions 19 and facil tate the assembly/ he 'core then comprises alternate spacers and water tubes, the

metal of the deformed "ends formin' a numtor when examined-from the front or rear.

- The construction-is also very rigid due tothe hexagonal edges. Furthermore, since there is no water 'at the extreme forward or rearof the spacward edge of the water tube, small dents in the face of the core do not cause leakage. The bridging members 23 serve as combined spacers for the water tubes and as bafiles and stir the air passing through the tubes. They also serve as heat radiating fins.

When the core is completed the upper and lower edges of the tubes and spacers are turned over with their edges overlapping, as

shown at 25 in Fig. 2. These portions form a header plate andare soldered together in the usual manner. The upper and lower tanks have inturned edges 26 and 27 and it is these inturned edges that are attached to the core. The weight of the tanks is therefore supported at the front and rear directly over the hexagonal portion of the core which it will be understood is exceedingly rigid.

' My invention is adapted to be modified in' various ways which will occur to those skilled inthe art. What I claim as my in- .vention is more particularly pointed out in the appended claims,

I claim:

1. A radiator core comprising a series of .,,-fiat vertical tubes, semi-hexagonally corrugated at each edge thereof only, a series of intermediate spacing members semi-hexagonally corrugated at each edge thereof only, said tubes and spacing members being so disposed relatively to one another as to form a series of hexagonal apertures at each face of the core.

2. A radiator core comprising aseries of fiat vertical tubes having a plurality of semihexagonal corrugations at each edge thereof only, a series of spacing members, having a plurality .of semi-hexagonal corrugations at each edge thereof'only, each of said spacing members being disposed between a pair of said tubes in such a manner as to form with the semi-hexagonal edges of the tubes a series of hexagons at each end of the radiator, whereby the front and rear-faces of the core have the appearance and strength of a hexagonal cellular radiator.

3. A radiator core comprising a series offlat vertical tubes corrugated at each. edge thereof only, and a serles of intermediate spacing members correspondingly corrugated at each edge thereof only, the corrugations of said spacing members being alternately complementary to those of the tubes whereby. a series of cellular apertures is formed at each face of the core.

4. A radiator core comprising a series of 1 flat vertical tubes corrugated at each edge thereof only, correspondingly corrugated strips intermediate the corrugated edge portions of said Water tubes, the corrugations of said strips'being alternately complementary to those of the adjacent tubes whereby a series of cellular apertures is formed at each face of the core.

5; A radiator core comprising a series of fiat vertical tubes corrugated at each edge thereof only, a series of correspondingly corrugated spacing strips arranged intermediate the corrugated portions of said tubes, the corrugations of said strips bein alternately complementary to those of the adjacent tubes, whereby a series of cellular apertures is formed at each face of the core,'and radiating fins extending integrally between the spacing strips adjacent the two faces of the radiator. I

6. A radiator core comprising a series of fiat vertical tubes, spacer strips engaging the edge portions only of said tubes, and radiating fins extending between the Water tubes and integrally connecting the spacing strips adjacent opposed faces of thecore, and supported solely bysaid strips and out of con-- In testimony whereof Iafiix my si nature.

RAYMOND L. HAW ms. 

